生物基反应性阻燃剂来自奇托,植物酸和环氧化大豆油,用于高性能可生物降解泡
Jiping Jiang1, Wenqing Yang1, Seng Hua Lee2
1Yunnan Provincial Key Laboratory of Wood Adhesives and Glued Products, Southwest Forestry University, Kunming 650224, People's Republic of China.
International journal of biological macromolecules
|March 15, 2025
概括
这项研究引入了一种新的生物降解聚氨泡 (PUF),使用生物基阻燃剂. 由此产生的ERPC-EG泡具有特殊的阻燃性和生物降解性,为传统材料提供了可持续的替代品.
科学领域:
- 材料科学 材料科学 材料科学
- 聚合物化学 聚合物化学
- 可持续材料 可持续材料
背景情况:
- 由于石化资源的枯竭,对可持续材料的需求日益增长.
- 需要对传统聚氨泡 (PUF) 进行阻燃和生物降解的替代品.
研究的目的:
- 开发一种全新的,全生物基的阻燃聚氨泡 (PUF).
- 为了提高PUF的阻燃性和生物降解性.
- 为了研究一种包含可扩展石墨的复合泡的性能.
主要方法:
- 从奇托 (CS),植物酸 (PA) 和环氧化大豆油 (ESO) 制备一种生物基反应性阻燃剂 (CPE).
- 使用ESO,酸 (RA) 和4,4-二甲二酸 (PMDI) 合成生物基PUF矩阵 (ERP).
- 通过混合ERP,CPE和可扩展石墨 (EG) 来制造ERPC-EG泡.
主要成果:
- 该ERPC-EG泡获得了优异的限制氧指数 (LOI) 33.5%和UL-94 V-0分类.
- 已证明有效的烟雾抑制,峰值释放热率 (pHRR) 为99.42 kW/m2,总烟雾释放率 (TSP) 为0.91 m2.
- 在60天的土壤埋葬后,表现出生物降解性,只有2.35%的质量损失.
结论:
- 开发的生物基阻燃剂和PUF矩阵使得创建高性能,可生物降解的泡成为可能.
- 加入可扩展石墨进一步提高了阻燃性和烟雾抑制.
- 这项研究为生产先进的聚氨泡提供了一个有希望的可持续途径.
相关概念视频
Molecular Weight of Step-Growth Polymers
2.1K
Step growth polymerization involves bi or multifunctional monomers. Bifunctional monomers react to form linear step growth polymers, whereas multifunctional monomers react to form non-linear or branched polymers.
As the step-growth polymerization involves step-wise condensation of monomers, the molecular weight also builds up eventually. Consequently, high molecular weight polymers are obtained at the late stages of the polymerization, where 99% of monomers have been consumed.
The extent of the...
As the step-growth polymerization involves step-wise condensation of monomers, the molecular weight also builds up eventually. Consequently, high molecular weight polymers are obtained at the late stages of the polymerization, where 99% of monomers have been consumed.
The extent of the...
2.1K
Radical Chain-Growth Polymerization: Overview
2.3K
Chain-growth or addition polymerization is successive addition reactions of monomers with a polymer chain. In radical chain-growth polymerization, the reaction proceeds via a free-radical intermediate. The free radical is formed from radical initiators, which spontaneously generate free radicals by homolytic fission. Organic peroxides (such as dibenzoyl peroxide, as shown in Figure 1) or azo compounds are popular radical initiators. A low concentration ratio of radical initiator to monomer is...
2.3K
Free-Radical Chain Reaction and Polymerization of Alkenes
7.7K
The conversion of alkenes to macromolecules called polymers is a reaction of high commercial importance. The structure of the polymer is defined by a repeating unit, while the terminal groups are considered insignificant. The average degree of polymerization represents the number of repeating units in the polymer molecule and is denoted by the subscript n.
7.7K
Flame Photometry: Overview
421
Flame photometry, also known as flame emission spectrometry, is a technique used for the qualitative and quantitative analysis of elements present in a sample using a flame as the source of excitation energy. The concept of flame photometry was realized in the early 1860s by Kirchhoff and Bunsen, who discovered that specific elements emit characteristic radiation when excited in flames. The first instrument developed for this purpose was used to measure sodium (Na) in plant ash using a Bunsen...
421


